John w



(No Model.)

'J. W, HYATT.

INJEGTOR FOR AERATION OP WATER.

Patented July 5, R887.

UNITED rrares ArnNr JOHN W'. HYATT, OF NEWARK, NEW JERSEY, ASSIGNOR TO THE HYATT PURE VATER COMPANY, OF SAME PLACE.

INJECTOR FOR AERATION OF WATER.

SPECIFICATION forming part of Letters Patent No. 366,169, dated J'uly 5, 1887.

Application filed Augnst, 1886. Serial No. 210,159. (No model.) i

To @ZZ whom it 'may concern:

Be it-known that I, JOHN W. HYATT, a citizen of the United States, residing at Newark, Essex-county, New Jersey, have invented certain new and useful Improvements in In jectors for Aeration of Tater and for other Purposes, fully described and represented in the following specification and thel aecompanying drawings,forming a part of the same.

larly to furnish a means of mingling air in a fine state of subdivision with a moving current of water to aerate the water in a process for purifying the same; and it consists in a series of sheet-metal tunnels or thin conical disks slightly separated from one another by proj ections -formed thereon, in combination with pipe-nozzles at the opposite ends, and means, as screw-rods, for clamping the nozzles and pile of disks together.

Figure l is a central longitudinal section of lthe injector on line :c a2 in Fig. 2, which figure is a plan ofthe same. Fig. 8 is a side view of the conical disks secured together by soldered straps. Fig. i is a view at the lower end of such disks. Fig. 5 is a plan view of a single disk with four corrugations;- and Fig. 6 is an edge view of the same, a portion of the soldered strap being shown in each view. Fig. 7 is a perspective View of one disk provided with four clips, and Fig. 8 is a perspective view of one clip detached.

A is the outlet-nozzle, formed with a conical recess to fit the convex side of the disks, and provided with a screw-thread to t a pipe, A.

B represents the conical disks resting upon the conical recess of the nozzle A, and C spaces intervening between the disks for the passage of the air.

D is the inlet-nozzle, formed with a conical projection to fit within the upper disk, and provided with an inlet-opening corresponding to the aperture bin the center of each disk, and with a screw-thread to fit an inlet-pipe, D. The nozzles A and D are clamped together upon a pile of disks by rods E, which pass through lugs f, formed upon each of the nozzles, and are provided with nuts Gto press the disks or funnels together. Sleeves F are applied to the rodsA between the lugs f, and are made of suitable length to sustain the nozzles The object of this invention is more particuat the proper distance to hold the funnels in place. The funnels are separated sufficiently to permit a thin lm of air to pass between them, and their funnel'shape prevents them 55 from escaping when inserted between the nozzles, whether the latter are clamped tightly upon them or not. The tunnels are preferably formed of short sections of thin brass tubing stamped into a conical shape by suitable tools, 6.) and their separation may be effected by forming ribs or corrugations in the sheet metal during such stamping operation or by any other suitable means. Where the tunnels have been imperfectly stamped, it has not been found necessary in practice to form any projections thereon, as the slight inequalities in their co nical form suffice to permit the entrance of the thin film of air, as is required in my invention. The funnels or disks may also be made from 7o dat sheet metal by the well'known process of spinning. Such tunnels may be secured to gether by straps o, secured to the edges of the funnels by solder, as shown at p in Fig. 3. The fnnnels may, however, be separated by the ribs or corrugations g, (shown in Figs. 5 and 6,) or

by loose clips a, (shown in Figs. 7 and 8,) the clip being formed by bending a 'strip of thin sheet metal, as shown in Fig S, to embrace one edge of the funnel, as shown at four points in 8o Fig. 7.

The operation of the apparatus, when thus constructed, is as follows: The current of water which it is desired to aerate is forced into the nozzle D, and, passing through the channel formed by the apertures b, passes out through the nozzle A. The movement of the water through the channel, as in other injectors, induces a lateral current through the minute spaces between the separate disks, and the air 9o drawn th rough the same in thin films enters the central channel formed by the combined apertures b, and is thus mingled with the water in an exceedingly tine state of subdivision.

In using my device for aerating purposes it is obvious that no casing of any kind is required, as the nozzles A and D serve to retainA the disks effectively in the desired relation to one another, and the Huid passing through the apparatus draws in the air in the desired man- 10e ner directly from the surrounding atmosphere.

I am aware that it is not new to combine a series of conical disks or funnels with a casing in such manner as to provide channels enlarged gradually outward between the disks to facilitate the entrance from the easing of a dense fluid like water; but as such tapering channels between the separate disks are wholly unnecessary for the passage of an attenuated duid like air it is obvious that my invention requires neither an external casing to guide the fluid to the channels nor a tapering form for the latter between the disks to secure its free movement.

The state of the art in this class is shown in United States Patents Nos. 302,182, of 1884, 106,683 of 1870, and English Patents Nos. 3,543 of 1876, 1,796 of 1872, and 5,189 of 1878; and I hereby disclaim the said patents and any other construction than that set forth herein. My invention differs radically from all such constructions, first, in using sheetmetal disks spun or stamped of uniform size and character, and secured together by clamping merely between the inlet and outlet nozzles. -My construction does not, therefore, require, as do all others, an exterior casing to hold the parts in the required relation to perform their functions properly.

formed of sheet metal, an inlet-nozzle with4 conical projection to iit the hollow of the disks, and an outlet-nozzle with conical recess to iit the convex side of the disks, the disks being held together solely by clamping between the nozzles, as and for the purpose-set forth.

2. In an injector, the combination, with an inlet and outlet nozzle, of a series of conical disks clamped between the same and unprovided with an external casing, as and for the purpose set forth.

3. The combination, with the series ofconical disks B and intermediate clips, a, of the inlet and outlet nozzles D and A,`elamped upon the disks, as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN W. HYATT. 

